Latch



ot. 13, 1931. P. s DUNN 1,826,868

y VLATCH Filed NOV. 8. 1928 ,y lInfthe drawings,

aging' the parts inl another position;v v

v .Referring to the drawingsin which I havey illustrated my invention byshoyv'ingfav pre- Y o ferred` embodiment thereof, the reference -numeral10V indicates', in general, a "hollow latch vPacman Oct. 13,"1931 LATCHThis invention relatesto a latch, andjmore especially to a latchVprovided Ywith a readily removable latch bolt and retracting mechanism.VA It is, in general, an object of the invention to bring about asimpliliedrform oflatch havvlr v ing butfew. parts, and whereintheparts'may be readily assembled and disassembled without thense of tools.v yj YAnother obj ect of kthe invention is to bring about an arrangementv o-'alatch and latch Y sists in the novelfeatures and, combination of partstobeV hereinafter describedfand claimed.V y o ,Y fFig. 1f is a planl viewk"of a according to my invention;`

;-"`Fig.' 2 Aisiafiront elevation of thesame';

.j '-3 lFi a 4 isa view similar ,to Fig. 3,'fbut lshowingt e latch boltretracted; andv f f Fig. 5 isk a `view similarV to 3, but'sh'ow casehaving atl one'en'd-v thereof an opening '11,

1n "which the head 12 of latch bolt 13 1s rea ceived, and at theoppsi-teendfan opening- -ii @which -t-.h'e stem 15 of bolt 131s received.Mounted onv` stem 15is" a 4compression Jspring i4; l''havingoneendbearing against an'flnner lsurfaceof rear wall 17 of case 1Q, theopposite.

` endof spring'lbearing-against head .1,2 and .bringing about vtheprotraction of, 'thev bolt.; Y In orderto retractthe latchbolt 13,a`Vlever i 50,18 is ,providedl pivotallymounted gon *caseh l110 Figx '3)isa sectional view'albng line SLS nahm-fing arnlgreceived in aisle@ ggfin head 12.' l"

. Case 10 is provided with apair of spaced HAvEN; coNNEo'rrcUnnssmNoR'ro SABGENT. "sa confirm?, y' j.or NnwnAvEmconNEcrIcUT l f integrallyformed ears 21v and 22,"having eX- tending therebetweenk a substantiallylcylina semi-'cylindrical opening 24 in lever 18 and forms a pivotal.connection ybetween case' 10 and lever 18,@ Th'e armlQ'Vof lever 18tapers v downwardly and is'of relativelyless width at it'spulowervendthan/opposite the 'opening 24, Y

the lower .end ofarm19beingprovided with a .rearwardly directed lug 25,which during :the normalwoperation ofthe latch isreceived under a,forwardlyyextending shoulder26 at ythe rear end of the opening20inlatch bo-lt` 13. In order tolimit the protraction of latchbolt 13, thef'rear, wall'17 voffcase 10 is continued upwardly yto a point 27substantially oop-f f positeothe upper edge ofpivotlu'g 23,1where 1t maybe engaged by the handle 28of'lever 18, `while the movement of lever',18`in retractingy latch bolt 13is limitedbyl face I29 of lever 1,8,which. engages faceO' of case 10.' yI .Iaterally. extendingii'anges 31and`32 are provided for mounting the latch ona door or the like,A

while reference numeral' 33' indicates a strike"A provided withk a latchbolt-receiving opening n o The operation-of the latch will b e1,e`a1dilyv understood ffornthe above description but may bebrieiiydescribedas follows rigs. zend eishow jthelatchwiuithe' bolt k13 fully lp`r ,)trac ted,and the hand'le28resting against the; upper edge 27 of wall 17 thebolt beingvfo'rced into protracted position againstl'the lowerend ofarm`19y by means Of'SP'Ilig 1.6- .l UPOD raising 'h'fmdl 28y .into the'position shown in dottedllinesjy inv Fig. 3, the. retracting v, lever 18is swung about'pivot lug 23, thelower end of, armf`l'9`engagingbolt 13`'and .forcingt the 'latten rearwardly yinto the position showningd'otted liners. f It is to fbe'lnote'd that iniathis position, thevshoulder 25 x is stillfengaiged under `shoulder 26 so that itlisimpossible to detach the-retracting lever f ,rom-'thelatchcase Thus,thelatch bolt may be retracted and protractedl without anydan ger ofthe.operative vparts being. detached from the case. v f

5 al i drical pivotlug 23, which-1s received within In order to detachthe latch bolt, spring and retract-ing` lever from the case, theoperation is as follows: The latch bolt is retracted by pressing on thenose 35 of latch bolt head 12 by means of a suitable instrument andforcing the latch bolt further into case 10 than the normal retractedposition. When the bolt is retracted in this manner tothe limit of thecompressibilty oi spring 16. or at least to such a position that theshoulder 26 on bolt 13 clears shoulder 25 on lever 18, Aand the lug 23clears the edges of opening 24 (Fig. 5), the lever may be withdrawnupwardly :trom the case 10 and separated theretronrr where upon thelatch bolt 13 and spring'l may be withdrawn outwardly through opening11. It is to be noted that the arm 19 of lever 18 is provided with arelatively flat tace 36 which when thelever 18 is rotated into fullyretracted position is spaced from vthe upper end 27 of wall 17. TheclearanceV between tace 36 and wall 1.'.7 permits the lever to be movedrearwardlv from pivot lug 27, a con: siderable distance but the levercannot withdrawn from the case on account ot' the tact that shoulder 25is still received under shoulder 26. Howevern when thebolt 13 is fullretracted by a .suitable tool applied to nose the clearance between tace36 and wall 17 becomes still .cre/aten and thus when shoulder 25 isclear oli shoulder 26 the lever may be moved rearwardly fromdisengagement with pivot lua Q3 and uwardlvtrom bolt 13 tobe separatedfrom the latch case.

From the'above description ol the nature. of mv invention and thepreferred embodiment thereoiE illust-rated. ,it will be readilvunderstood that the usual fastening means are enti relv eliminate-Tl.and while tbe several. parts ot the latch may be readily disassembledwhen desired there isno danger ot these parts becoming disarrane'edduring the normal op'- eration of the latch.

VVbile T have shown a nreterred embodiment ot mv invention. it is to heunderstood that the is not to be limitedto all tbe details shown but iscapable oli modilication and variation within the spirit otJrheinvention and the scope of the appended claims.

That T claim is: n

In a latchn a casino'` a latch bolt in said casing, and means nivotallvmounted in the casino: tor retractine' said latch bolt` said meansinclu-dino' a part ot the latch holt on the remoeagd@ thereott'rom thepivotal mounting and retained in the casing thereby. l l

2. In a latch, a. casing. a latch bolt in said part allvV .Us giu 0.

casing, means on said casing torretracting said latch bolt` and spring`means for proltracting the bolt, said retracting means including a partengaging the bolt to hold the Vretracting means in the casing during thenormal protraction and retraction of the bolt, said part beinedisengageable from the releases bolt by a movement of the bolt in thedirection of retraction, beyond the normal retracted position of thebolt.

8. In a latch, a casing, a latch bolt in said casing, a pivoted levermounted inthe casing having a part engaging the latch bolt and adaptedto retract the same, and means on said lever engaging a part ot thelatch bolt to retain thelever rigidly against movementout ot the casingwhen the lever is separated trom its pivotal mounting.

4. ln a latch, a casing, a` latch bolt mounted in said casing, and aretracting lever mounted in said casing, said latch bolt being providedwith an opening and said lever being provided with an arm v extendingthrough said opening, and means on the lower end of said arm beyond theAopening engaging said bolt to Iretain the lever 1nI said latch casing.

5. ln a latch, acasing, a latch boltmounted in said Y casino; and aretracting lever mounted in said casing, said latch'bolt be-i ingprovided with an opening and 'said level` being provided with ,an` armextending 6. ln a latch, a casing. a latch bolt mounted i in saidcasing, a pair ot ears on said casing, a pivot lug extending betweensaid ears, a retracting lever insertable into said casing between said.ears and provided with` an opening in which said lug is received, saidV retracting lever having means th'ereonen gagingr said bolt to retractthe same, 'and means on said retracting lever engaging said bolt to hold`the retracting lever in 'saidicase Y 7. In a latch, a casingralatchbolt mounted in said casing, a pair ot ears on said casing, a pivot lugextending' between said. ears, a retracting lever mounted between saidVears and provided with an opening inwhichlsaid lug is received, saidretracting lever having means thereon engaging said .bolt to retract thesame, and means on said retracting lever engaging said bolt to hold theretracting lever said case said latch bolt beingv disengageable from thebolt upon movement of the bolt inthe direction of retraction beyond thenormal retracted position of the bolt.

8. In a latch, a casing, a latch bolt in said casing, said bolt being`provided withan opening` a nivoted lever mounted in the icaslng, saidlever having van arm extending through said opening,'and a rearwardly'directed shoulder on the lower end of said arm,

said shoulder underlying a part ofthe bolt during the` normal operationof the latter said bolt being disengageable from said i '5 casing, apivot lug in said'casing, a retracting '20* in retracting the bolt,saidmea-nscomp'ris- V1,826,868y Y f v V"E5 Y shoulder uponmovement ofthe bolt in the direction of retraction beyond 'the' normal*v retractedposition of the bolt.

9. In a latch, a casing, a latch boltin said Y `lever havingan openfaced recessV inV which j ltheV pivot lug may be received,and means on,said retracting lever engaging lsaidboli-to retract the same uponmovementv ofthe lever, 10. and means independent of said lugfor hold- YY, ing ysaid lever in said casing,vsaid last-'nan'ied y means beingfreely movable into position' to` disengage said lever. l

l0.' In a latch, a casing; a latch bolt in said casing, a pivot lug*formed on said casing, av

' retracting lever havingan opening in which v -said lugis'received,-means.on said retrating lever engaging said bolt'to.retract the samey and means'to limit the movementof the leven l.

ing an outwardly extendingv face ion said lever adjacent the opening anda partof said lpivot lug With which said face cornes in con-Y tact' y In In WitnessY whereof, I have 'hereunto set'my hand this 29th dayofOctober, 1928. A

" PETER S. DUNN.Vv

